Update localization/autoware_pose_covariance_modifier_node/README.md

Signed-off-by: meliketanrikulu <melike@leodrive.ai>

Co-authored-by: M. Fatih Cırıt <xmfcx@users.noreply.github.com>

Author: meliketanrikulu

localization/autoware_pose_covariance_modifier_node/README.md

@@ -22,7 +22,7 @@ to the error values coming from GNSS, it also manages situations where GNSS and
 <img src="./media/new_proposal-proposal.drawio.png" width="620">
 </p>
 
-## Activate This Feuture
+## Activate this feature
 
 This package is not used by default autoware, you need to activate it to use it.